<template>
  <div v-if="jcxColumnList.length > 0" class="setting-column" v-loading="isSave">
    <div class="setting-column__title">
      <span class="move_b"></span>
      <span class="show_b">显示</span>
      <span class="name_b">名称</span>
      <span class="width_b">宽度</span>
      <span class="sortable_b">排序</span>
      <span class="fixed_b">固定</span>
    </div>
    <div class="setting-column__list" ref="columnListRef">
      <ul>
        <li v-for="item in jcxColumnList" :key="item.prop">
					<span class="move_b">
						<el-tag class="move" style="cursor: move;">
              <el-icon-d-caret style="width: 1em; height: 1em;"></el-icon-d-caret>
            </el-tag>
					</span>
          <span class="show_b">
						<el-switch v-model="item.hide" :active-value="false" :inactive-value="true"></el-switch>
					</span>
          <span class="name_b" :title="item.prop">{{ item.label }}</span>
          <span class="width_b">
						<el-input v-model="item.width" placeholder="auto" size="small"></el-input>
					</span>
          <span class="sortable_b">
						<el-switch v-model="item.sortable"></el-switch>
					</span>
          <span class="fixed_b">
						<el-switch v-model="item.fixed"></el-switch>
					</span>
        </li>
      </ul>
    </div>
    <div class="setting-column__bottom">
      <el-button @click="handleBack" :disabled="isSave">重置</el-button>
      <el-button @click="handleSave" type="primary">保存</el-button>
    </div>
  </div>
  <el-empty v-else description="暂无可配置的列" :image-size="80"></el-empty>
</template>

<script setup>
import Sortable from 'sortablejs';
import {onMounted, ref, watch} from "vue";

const props = defineProps({
  // 表格列列表
  columnList: {type: Array, default: []},
});
const emit = defineEmits(['back', 'save', 'columnChange']);
const isSave = ref(false);
const columnListRef = ref(null);
const jcxColumnList = ref(JSON.parse(JSON.stringify(props.columnList || [])));

const rowDrop = () => {
  const tbody = columnListRef.value.querySelector('ul');
  Sortable.create(tbody, {
    handle: ".move",
    animation: 300,
    ghostClass: "ghost",
    onEnd({newIndex, oldIndex}) {
      const tableData = jcxColumnList.value;
      const currRow = tableData.splice(oldIndex, 1)[0];
      tableData.splice(newIndex, 0, currRow);
    }
  });
}

const handleBack = () => {
  emit("back", jcxColumnList.value);
}

const handleSave = () => {
  emit("save", jcxColumnList.value);
}

onMounted(() => {
  jcxColumnList.value.length > 0 && rowDrop();
});

watch(() => jcxColumnList.value, (val) => {
  emit("columnChange", jcxColumnList.value);
}, {immediate: true, deep: true});
</script>

<style scoped>
.setting-column {
}

.setting-column__title {
  border-bottom: 1px solid #EBEEF5;
  padding-bottom: 15px;
}

.setting-column__title span {
  display: inline-block;
  font-weight: bold;
  color: #909399;
  font-size: 12px;
}

.setting-column__title span.move_b {
  width: 30px;
  margin-right: 15px;
}

.setting-column__title span.show_b {
  width: 60px;
}

.setting-column__title span.name_b {
  width: 140px;
}

.setting-column__title span.width_b {
  width: 60px;
  margin-right: 15px;
}

.setting-column__title span.sortable_b {
  width: 60px;
}

.setting-column__title span.fixed_b {
  width: 60px;
}

.setting-column__list {
  max-height: 314px;
  overflow: auto;
}

.setting-column__list li {
  list-style: none;
  margin: 10px 0;
  display: flex;
  align-items: center;
}

.setting-column__list li > span {
  display: inline-block;
  font-size: 12px;
}

.setting-column__list li span.move_b {
  width: 30px;
  margin-right: 15px;
}

.setting-column__list li span.show_b {
  width: 60px;
}

.setting-column__list li span.name_b {
  width: 140px;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
  cursor: default;
}

.setting-column__list li span.width_b {
  width: 60px;
  margin-right: 15px;
}

.setting-column__list li span.sortable_b {
  width: 60px;
}

.setting-column__list li span.fixed_b {
  width: 60px;
}

.setting-column__list li.ghost {
  opacity: 0.3;
}

.setting-column__bottom {
  border-top: 1px solid #EBEEF5;
  padding-top: 15px;
  text-align: right;
}

.dark .setting-column__title {
  border-color: var(--el-border-color-light);
}

.dark .setting-column__bottom {
  border-color: var(--el-border-color-light);
}
</style>
